Machine for forming heels and toes of horseshoes.



W. B. MILLER.

MACHINE FOR FORMING HEELS AND TOES 0F HORSESHOES.

1,222,574. Patented Apr. 10, 1917.

2 EEEEEEEEEEEE I.

ii 5; H :a 5 9:: MM? 1,: 5 Fly? 4, 2f 5 W. B. MILLER.

MACHINE FOR FORMING HEELS AND TOES 0F HORSESHOES.

APPLICATION lLED SEPT. 15. 1913.

1,222,574. Patented Apr. 10, 1917.

2 SHEETS-SHEET 2.

1'L4 1l 1i JL /4 '5 '1 a '5 I I: I i i.: l :1-

6 fETlLIFZiLlQ-L 15 15 4 J I I l! H 1 I F 7 I- 11 1 WITNESQES UNITED STATES PATENT OFFICE.

WILLIAM B. MILLER, 01? PITTSBURGH, PENNSYLVANIA.

MACHINE FOR FORMING HEELS AND TOES OF I-IORSESHOES.

Application filed September 15, 1913.

To all whom it may concern:

Be it known that I, WVIL-LIAM B. MILLER, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Machines for Forming Heels and Toes of Horseshoes, of which improvement the following is a speciiication.

My invention relates to improvements in apparatus for electrically forming toes, clips and heels'upon horse shoes.

The object of my invention is to produce an apparatus simple in construction and efficient in operation and I accomplish this by means of the device hereinafter more specifically described, reference being had to the accompanying drawings, in which Figure 1 is a side elevation of the apparatus.

Fig. 2 is a plan view of the same.

Fig. 3 is a transverse elevation partly in section, the section being on line 1, 1 of Fig. 1.

Fig. at is an elevation partly in section on line 2, 2 of Fig. 1.

Figs. 5 and 6 are details of clip former.

Fig. 7 is a diagrammatic view of the circuits from the two transformers,

Fig. 8 is a side elevation of the lever for bending the heels of the horseshoe blank, the handle being broken away.

Fig. 9 is a front elevation of the said lever, the handle being broken away.

Referring to said drawings, 1 is a frame on which the operative portion of the mechanism is supported and within which the electrical transformers 2, 3 are secured and located. 4 is the top portion of the frame,

in which longitudinal ways 5, 5 are provided and in which the welding and holding mechanism of the apparatus is adapted to slide.

6 is the base which is slidably mounted in said ways and is adapted to be actuated or moved by power stored in the cylinder 7, the piston 8 of which is connected to the outer end of said base. 9 is a bracket which is bolted or otherwise suitably secured to said base. sure arm, the outer end of which is pivotally secured to said bracket, the opposite free end of which is provided with a pressure screw 11, which is adapted to bear upon a plate 12 for the purpose of holding the calk or toe 13 in position upon the insulated cop- Specification of Letters Patent.

10 is an insulated lever or pres-- Patented Apr. 10, 1917.

Serial No. 789,781.

per block 141, to which a current of electricity is carried from the transformer 2 by means of conductors 15, the said copper block having an interior conduit or chamber 16 through which water is permitted to pass for the purpose of preventing too great heat in said block. Immediately at the rear of said calk or toe an adjustable filler 17 is provided and a set screw 18 secured in the upper end of the block is adapted to regulate the adjustment of said filler to accommodate any size toe desirable. 19 is a lever the lower cammed surface of which engages upon the pressure arm 10 for the purpose of forcing the same down upon the plate 12, as heretofore stated, for the purpose of holding the calk or toe piece in position when the same is being heated to welding temperature by the electrical current conveyed to the copper block, as heretofore herein specified. The water that is used for the purpose of maintaining or preventing too high temperature in the block is conveyed thereto and therefrom by means of the water pipes 20, 21. Immediately opposite the mechanism described a base plate 22 similar to the base 6 is slidably supported on the top portion of the frame. Upon the said base is suitably secured an insulated hollow copper block 23 similar in all respectsto the copper block 14. The temperature thereof is controlled in the same manner by the admission of water to the interior thereof through water pipes 2021-24. Suitably secured upon the top of said block is an insulated bracket or support 25, to which the horse shoe blank 26 is secured by means of the insulated cross bar 27 through which a rod 28 passes and is secured to a cammed lever 29, whereby the said bar may be pulled into contact with the heel portion of the blank for the purpose of holding the same in a vertical position and also for the purpose of tightening the cross bar and holding the same firmly in position. The lower end of the horse shoe blank rests upon the adjustable fork 30 which is adapted to be distended, dependent upon the size of the blank supported thereby. 31 is a cammed lever which is adapted to engage against the outermost portion of the shoe blank for the purpose of bending the same at right angles to the body thereof when the same is brought to a high temperature by means of an electric current, as heretofore specified, for the purpose of forming the heels. The lower end of the lever 31 is pivotally mounted at 31, said lever being provided at a point adjacent the pivot end thereof with a transversely disposed cam bar 31 which is adapted to be swung into engagement with the upper ends of the horseshoe blank to bend the same. A double cable 0 is connected to the primary terminals of the transformer 2, While a similar double cable is connected to the primary terminals of the transformer 3. A double cable 15 is connected to the secondary tor-- minals of the transformer :2, one of the ends thereof leading to the copper block 1%, while the other end thereof leads to the toe calk 13. The secondary current from the transformer 2 thus follows the large copper block is and the comparatively small toe calk 18, with th result that the latter is quickly heated to the proper temperature for welding. A double cable 15 is connected to the scondary terminals of the transformer 3, and has the free ends thereof connected to the copper block 523 and the horseshoe blank 26, respectively. With this construction it will be obvious that the secondary current from the transformer 3 will pass through the horseshoe blank 26 and the copper block 23, with the result that the former will be heated. Owing to the difi'erence in size between the horseshoe blank 26 and the toe calk 13, different currents are required for beating them to the proper temperature for Welding, and by the use of the two transformers this can be readily accomplished. While the two members are at the proper welding temperature they are forcibly pressed together by moving the platforms upon which they are mounted toward each other, thereby securing the toe calk to the horseshoe blank.

A double cable 0 branches from the double cable 15 of the-transformer 2 and leads to a knife switch 32, one of the terminals ofthe knife switch being connected to a bar 50 which extends across the leel end of the horseshoe, while the other terminal is in con nection with the horseshoe blank 26. While the toe calk is being applied to the shoe the switch 32 is open, as shown by Fig. 1, and no current passes through the projecting points of the blank. However, when it is desired to form the heels of the shoe the switch 32 is closed so as to heat the ends 01" the blank. When the proper temperature has been reached the current can be switched off, the bar 50 swung to one side into an inoperative position, and the cam lever 31 brought forcibly forward so as to bend the ends of the blank at right angles to the body portion thereof and form the heels of the shoe. By reference to Fig. 3 it will be noted that the bar 50 is hinged at one end thereof, at 50 so that it can be swung into and out of engagement with the ends of the shoe blank. 33 is an adjusting screw the ends of which are secured in the abutment 34 and in the base 22. It is understood that one of the calks or toes supported upon one of the copper blocks let is brought into contact with the shoe blank supported on the hollow block 23 with sufficient pressure to weld the toe on to said blank. It is also understood that the temperature in the blank and in the calk is occasioned by resistance to the very high current passing through the copper blocks.

After the calk or toe has been welded to the blank as-described the electric current is shut 0d and the clip former 85 is secured to the top of the block lat and the plate 12 in a manner similar to that of securing the calk therein, the shoe blank at the toe portion still being heated sufhcient to be pressed into form, the clip former is advanced against the same, forcing the portion of the blank projecting beyond the calk at right angles therefrom and forming the clip. The toe former 35 has a square notch 35 at the back thereof which fits over the upper corner of the copper block 14, and an extension 35 at the front thereof which will clear the toe calk and engage the toe of the shoe so as to form the clip when forced into engagement therewith.

Having described my invention, what I claim and desire to secure by Letters Pat ent is:

1. In a machine for forming the heels and toes upon horse shoes, the combination of a frame, a platform movable on the top of said frame, a platform adjustably mounted on said frame opposite said first mentioned platform, means carried by the first mentioned platform for holding a calk or toe piece, means for conveying an electric current to said toe piece, a support mounted upon the adjustable platform for holding the horse shoe blank, means for conveying an electric current to the heel and toe of said blank for the purpose of raising the same to a welding temperature, means for advancing the toe piece into contact with the blank for the purpose of electrically welding the same thereto, and means for turning the separate ends of the blank to form the heels.

2. In a machine for forming the heels and toes upon horse shoes, the combination of a frame, a platform movable on the top of said frame, a platform adjustably mounted on said frame opposite said first mentioned platform, means carried by the first mentioned platform for holding a calk or toe piece, means for conveyingan electric current to said toe piece, a support mounted upon the adjustable platform for holding the horse shoe blank, means for conveying an electric current to the heel and toe of said blank for the purpose of raising the same to a welding temperature, means for advancing the toe piece into contact with the blank for the purpose of electrically welding the same thereto, and means for turning the separate ends of the blank to form the heels.

3. In a machine for forming the heels and toes of horseshoes, the combination of a frame, a pair of platforms mounted upon the frame and movable toward and away from each other, a large copper block upon each of the platforms, means for clamping a horseshoe blank against one of the copper blocks, means for clamping a toe calk against the other copper block, means for conveying electric currents through the said members and the respective copper blocks, and means for moving the platforms toward each other to force the toe calk against the horseshoe Llank.

4. In a machine for forming the heels and toes of horseshoes, the combination of a frame, a pair of platforms mounted upon the frame and movable toward and away from each other, a large copper block mounted upon each of the platforms, means for clamping a horseshoe blank against one of the copper blocks, means for clamping a toe calk against the other copper block, means for conveying an electric current through each of the members and the respective copper block to heat the members to the Welding temperature, means for conveying an electric current through the heel ends of the horse shoe blank, means for moving the platforms toward each other to force the toe calk against the horseshoe blank, and means for bending the heel ends of the horseshoe blank.

5. In a machine for forming the heels and toes of horseshoes, the combination of a frame, a platform movable on said frame, a platform adjustably mounted upon the frame opposite the first mentioned platform, a copper block mounted upon the first mentioned platform, a bracket mounted upon said platform, an insulated lever arm pivoted at one end to the bracket, a lever pivoted to the bracket above the free end of the insulated lever and provided with a cammed surface at its lower end, said cammed surface engaging the free end of the insulated lever to hold a calk or toe piece in electrical con- 1 tact With the copper block, means for conveying an electric current to the copper block, means upon the adjustably mounted platform for holding a horseshoe blank, means for conveying an electric current to said blank, and means for advancing the toe piece into engagement with the blank for the purpose of electrically welding the same.

6. In a machine for forming the heels and toes of horseshoes, the combination of a frame, a platform movable upon said frame, a platform adjustably mounted upon the frame opposite the first mentioned platform means upon the first mentioned platform for holding a calk or toe piece, means for conveying an electric current to said toe piece, a copper block mounted upon the adjustably mounted platform, a bracket mounted upon the copper block, means upon the bracket for holding a horseshoe blank in electrical contact with the copper block comprising an insulated cross bar engaging the horseshoe blank, a bolt passing through said cross bar and connected at one end to a cammed lever, said cammed lever serving to tighten the cross bar against the horseshoe blank and securely clamp said blank in an electrical contact with the copper block, means for conveying an electric current to the copper block, and means for advancing the toe piece into engagement with the blank for the purpose of electrically welding the same.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

WVILLIAM B. MILLER.

In the presence of CLAnnNoE A. WILLIAMS, JOHN H. Ronny.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Pltentl, Wanhington, D. G. 

